Question

Which does not show a direct variation between x and y?
A. y= 4/x
B. y= 0.5x
C. y= 7x
D. y= x/9

Answer 1

Direct variation is where you have a number, lets say b, so that y=bx.

For this, all of them have that except A, which is in the form y=b/x

Answer 2

A

Answer 3

thanks~!